If the ratio of the concentration of electrons to that of holes in a semiconductor is 7/5 and the ratio of currents is 7/4, then what is the ratio of their drift velocities?

Electronic Devices: JEE Main 2006 Physics question

JEE Main 2006 · Annual, Paper 1 · Q6860

JEE Main 2006Annual, Paper 1PhysicsEasyElectronic Devices66× since 2002

If the ratio of the concentration of electrons to that of holes in a semiconductor is

{7 \over 5}

and the ratio of currents is

{7 \over 4},

then what is the ratio of their drift velocities?

JEE Main 2006 · Annual, Paper 1 · Q6860

JEE Main 2006Annual, Paper 1PhysicsEasyElectronic Devices66× since 2002

If the ratio of the concentration of electrons to that of holes in a semiconductor is

{7 \over 5}

and the ratio of currents is

{7 \over 4},

then what is the ratio of their drift velocities?